Improvement in dies for the manufacture of fifth-wheel heads



' fl' 3 Sheets--Sh'eet 1 F. VAN PATTEN.

Dies for the Manufacture of Fifth Wheel Heads.

NO. 41,682. Patented Augustl2,1873

' 3 Shee ts-She'et 2 Fl VAN PATTENQ Dies for th Manufacture ofFift'h'whe el Heads.

N0. 141,682. Patented Augustl2,-l8?3.

3Sheets--Sheet 3 F. VA'N PATTEN.

Dies for the Manufacture of Fifth Wheel Heads. NO..141,682.Patented-August12,l873.

d g 625 a! v6 05 7 article, Fig. 7, is produced.

UNITED STATES PATENT QFFIGE.

FREDERICK VAN PATTEN, OF AUBURN, NEW YORK, ASSIGNOR, BY MESNEASSIGNMENTS, TO HIMSELF AND E. D. CLAPP, OF SAME PLACE. Y

IMPROVEMENT IN DIES FOR THE MANUFACTURE OF FIFTH-WHEEL HEADS.

Specification forming part of Letters Patent No. 141,682, dated August12, 1873; application filed February 28, 1873.

To all whom it may concern:

Be it known that I, FREDERICK VAN PAT- TEN, of Auburn, in the county ofCayuga and State of New York, have invented an Improvement in theManufacture of Fifth-Wheel Heads for Vehicles; and I do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the accompanying drawings making part of thisspecification, in which- Figure 1, Plate 1, is a face view of one of thedie-sections for shaping the blank. Fig. 2, Plate 1, is a perspectiveview of the breakdown or blank for the die. Fig. 3, Plate 1, is a viewof the second formation of blank with its fins. Fig. 4, Plate 1, is aview of the second formation of blank with the fins removed. Fig. 5,Plate 2, shows, in section, the vertically-divisible parts of the diesin which the blank of Fig. 4., Plate 1, is brought to the shaperepresented by Fig. 7. Fig. 6, Plate 2, is a vertical face view of oneof the dies of Fig. 5. Fig. 7, Plate 2, is a perspective view 'of theimproved wheel-head. Figs. 8 and 9 show the dies for making the blank ofFig. 2, but not creasing it.

Similar letters of reference indicate correspondin g parts in theseveral figures.

The object of this invention is to produce, by means of dies, certainblanks hereinafter explained, such blanks to be used in the constructionof an article known in carriage hardware as a fifth-wheel head-that isto say, a blank for the formation of the clip and section of the bottomfifth-Wheel of a vehicle. The nature of my invention consists, first, ina peculiar manner of forming dies with recesses, for the purposehereinafter shown; second, in a peculiar construction of dies forforming the primary blanks which are operated upon by the said recesseddies, as will be hereinafter shown; third, in a oombination of the threesets of dies hereinafter described, whereby the The followingdescription of my invention will enable others skilled in the art tounderstand it.

On Plate 1 of the accompanying drawings 1 have represented one-half ofthe die to which the blank of Fig. 2 is subjected for the production ofthe blank represented by Fig. 3. The primary blank, represented by Fig.2, is produced from a rectangular bar of metal by means of the diesshown on Plate 3, Figs. 8 and 9, by first subjecting the bar edgewisebetween the die-sections, as shown by Fig. 8, then turning the 'barone-quarter around, and subjecting it to the action of another portionof the same dies, which leave the swell y in' it. The creases ff aresubsequently produced by a proper tool. Thus produced, the blankpresents a body, 6, two portions, d d, notches at m m, and a baseportion, cl". Out of the portions (1 d I form the clip-ends d d on eachside of the body 6', and out of the straight portion d" I form thefifth-wheel section d which terminates in front at the extremity of theshortest portion, and to the longest portion of which a half-round baris to be welded, which forms, when properly, curved, the back part ofthe bottom fifth-wheel. When the primaryblank of Fig. 2 is adjusted onthe base section of the die A, over the recesses a, a, b, and c therein,and the upper corresponding section of the die is brought down withgreat force upon the blank, it is forced into the shape represented byFig. 3, the surplusage of metal being forced out into fins w, asrepresented by this figure. After this operation the fins w are trimmedoff, as shown by the blank of Fig. 4. This blank is heated, and itsclip-ends are turned at or nearly at right angles to the fifth-wheelsection d by hand, after which it is adjusted between two die-sections,B B, and on an intermediate gage-block, D, and struck a heavy blow ontop, which finishes the article, as shown by Fig. 7. The twodie-sections'B B are laterally movable in a box, 0, for the purpose ofreadily introducing and removing the blanks, and are firmly heldtogether, when a blank is between them, by any suitable contrivance. Therecesses g in the tops of the die-sections finish the bar d the recesses71. in the vertical faces of these die-sections finish the outer sidesof the flat portions of the clip-ends, and the grooves h below therecesses h receive the round ends d of the clip. The block D issupported on top of the box 0 between the die-sections B B and betweenthe flat portions d d of the clip, and this block should be exactly thethickness of the axle on which the clip is to be fitted. This block willthus serve as a gage for the clips. When the die-sections B B areforcibly pressed up to the blank and held firmly, a drop is brought downupon these sections, and the top surface of the bar 01 is flattened.This completes the operation.

The break-down dies represented by Figs. 8 and 9 consist of twosections, with depressions and elevations on them corresponding to theshape of the primary blank shown in these figures.

The bar is first adjusted between the dies and formed as shown in Fig.8, after which it is turned over and straightened and the swell 3 put init, as shown in Fig. 9. The blank is then creased at f f, as shown byFig. 2, after which it is adjusted between the dies A, as abovedescribed.

Having described my invention, whatI claim as new, and desire to secureby Letters Patcut, is

1. The die-sections A, recessed as described, to produce the blank ofFig. 3 with fins w, as specified.

2. The dies shown by Figs. 8 and 9, for producing the primary blank Fig.2, from which the blank Fig. 3 is produced, as set forth.

3. The combination of the dies shown by Figs. 1, 5, 6, 8, and 9, as andfor the purpose herein described.

FREDERICK VAN PATTEN.

Witnesses:

HORACE T. COOK, O. M. FITCH.

